I have a 2005 Grand Prix GXP. About a month ago, my check tire pressure light came on. I took my car to meineke to get an oil change and fuel injection service and had them check the tires. They said my tires seemed OK. They put more air in them and reset the system. I have driven my car about 1200 miles since and my check tire pressure light came on again. My tires look fine (nothing noticeable). Can someone tell me what this could be and how much to fix?Why is my Check Tire Pressure light on?It could be a slow leak or it could be the change of season if the tires are just inflated enough to turn the light off when they are cold they will trigger the light. Was it cold the first day it happened? Is it all the tires or just one tire?Why is my Check Tire Pressure light on?You probably have a slow air leak. Take it to a tire shop and have them check all tires for air leaks.Why is my Check Tire Pressure light on?If the system was reset after they put air in your tires and it lasted a month or so before the light came back on, then it is safe to assume that you have a slow leak in one of the tires. Check inside the treads of the tire and spin the tire, you may see a small nail or screw that is letting the air escape. You can also spray some washer fluid around the rim and valve stem, they will leak sometimes by the wheel weights so you may see a small bubble of air seeping out in that area. Move the valve stem side to side when you spray it, it can also leak from this area. If no luck, take the car anywhere that they sell tires and have them dunked in a water tank to see if they can spot the location of your leak.
Good Luck........Why is my Check Tire Pressure light on?Obviously a slow leak... likely the valve stem...Why is my Check Tire Pressure light on?Check the sensor on the rim and see if it may be a bit loose. Its a possibility.
